9640812 has 24 divisors (see below), whose sum is σ = 22550976. Its totient is φ = 3205648.

The previous prime is 9640811. The next prime is 9640817. The reversal of 9640812 is 2180469.

9640812 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9640812.

It is not an unprimeable number, because it can be changed into a prime (9640811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6043 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (939624).

Almost surely, 2^9640812 is an apocalyptic number.

It is an amenable number.

9640812 is an abundant number, since it is smaller than the sum of its proper divisors (12910164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9640812 is a wasteful number, since it uses less digits than its factorization.

9640812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 9640812 is about 3104.9657002936. The cubic root of 9640812 is about 212.8324632009.

The spelling of 9640812 in words is "nine million, six hundred forty thousand, eight hundred twelve".